Holder and gage for grinding scissors.



No. 666,740. Patented Jan. 29, I901.

W. L. DAVIS.

HOLDER AND GAGE FOB GRINDING SCISSORSJ (Appli mm ad n4, 1900.

(No Nodal.)

UNITED STATES 'ATENT FFICE.

WILLIAM L. DAVIS, OF DES MOINES, IOWA, ASSIGNOR TO A. S. BENSON, OF

SAME

PLACE.

SPECIFICATION forming part of Letters Patent No. 666,740, dated January29, 1901.

Application filed September 4, 1900- Serial No. 28,938. KNO m l-l To allwhmn it may concern.-

Be it known that I, WILLIAM L. DAVIS, a citizen of the United States,residing at Des Moines, in the county of Polk and State of 5 Iowa, haveinvented a new and useful Holder and Gage for Grinding Scissors, 850.,of which the following is a specification.

My object is to facilitate grinding scissors and blades of other cuttinginstruments as I required to produce uniform bevels from end to end ofthe cutting edges.

My invention consists in a device adapted to admit the blade of ascissors and to be pivotally connected with a support and a supportadapted to be pivotally connected with the base upon which a grindstoneis mounted, as hereinafter set forth, pointed out in my claims, andillustrated in the accompanying drawings, in which Figure l is aperspective view of the part through which a blade can be extended toaid in holding the blade at a proper inclination relative to the surfaceof the grindstone, while at the same time the blade can be movedlongitudinally and also laterally relative to the stone. Fig. 2 is aperspective view of the support adapted to be pivotally connected withthe base upon which the grindstone is mounted. Fig. 3 is a perspectiveview showing my invention applied as required for practical use.

The letter A designates the part adapted to admit the blade of ascissors. Its lower end portion is straight and has a centrallongitudinal bore and its upper end portion is curved and bifurcated toadmit the passage of a blade, as shown in Fig. 3.

B is a round bar bent at right angles to produce an arm 0, and at theend of the arm is a vertical extension D, adapted to enter the bore inthe lower end portion of the part A in such a manner that the part A canbe detachably and pivotally connected with the arm 0.

F is a block adapted to be fixed on top of the base of a grindstone forpivotally connecting the post B therewith. It has a vertical boreintowhich the end of the post is inserted,

and the bottom of the bore serves as a step in which the post can rotateas required for adjustably combining the complete device with agrindstone.

It is obvious my device may vary in size for grindstones of variousdiameters. It is also obvious the grindstone may be operated by means ofa belt connected with a motor and a pulley on the end of the axle of thestone or in any suitable way.

In the practical use of my invention when a blade is extended throughthe top of the part A it can be retained precisely at the same lateralinclination relative to the surface of the grindstone and at the sametime moved longitudinally, as required to grind the beveled side of thecutting edge from end to end uniformly, and to produce uniform wear ofthe stone from end to end it is obvious the blade can be adjustedrelative to the longitudinal axis of the stone, so that it can be movedfrom one end of the stone to the other and extended across the stone atvarious angles in vertical planes and also horizontal planes withoutchanging the angle of the blade in. the pivoted and bifurcated part A,that serves as a gage for retaining the beveled edge of the bladecontinually at the same degree of angle relative to the surface of thestone.

Having described the construction, application, and operation of myinvention, its practical utility will be readily understood by personsfamiliar with the art to which it pertains.

What I claim as new, and desire to secure by Letters Patent therefor, is

l. A device for holding scissors to a grindstone, to facilitate grindingbeveled edges of blades, consisting of a holder that is curved andbifurcated at its top portion and straight at its lower portion and avertical bore in said 0 lower. end to admita pivot and a pivot adaptedto be pivotally connected with the frame or base of a grindstone andmeans for pivoting its lower end to operate in the manner set forth.

2. A device for holding scissors to a grindstone to facilitate grindingbeveled edges of blades, consisting of a part having a straight base ofa grindstone to operate in themanner lower end portion and a verticalbore therein set forth, for the purposes stated. and a curved andbifurcated upper end portion, a post having an arm and vertical ex-.

5 tension at the end of the arm and a block Witnesses:

having a bore adapted to admit the lower end F. G. STUART, of the post,arranged and combined with the f THOMAS G. QRWIG.

WILLIAM L. DAVIS.

